40808417 has 8 divisors (see below), whose sum is σ = 45858624. Its totient is φ = 36031248.

The previous prime is 40808399. The next prime is 40808429. The reversal of 40808417 is 71480804.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40808417 - 2¹² = 40804321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40808437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67943 + ... + 68540.

It is an arithmetic number, because the mean of its divisors is an integer number (5732328).

Almost surely, 2^40808417 is an apocalyptic number.

It is an amenable number.

40808417 is a deficient number, since it is larger than the sum of its proper divisors (5050207).

40808417 is a wasteful number, since it uses less digits than its factorization.

40808417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136519.

The product of its (nonzero) digits is 7168, while the sum is 32.

The square root of 40808417 is about 6388.1466013234. The cubic root of 40808417 is about 344.2837960262.

The spelling of 40808417 in words is "forty million, eight hundred eight thousand, four hundred seventeen".